2007 was a paparazzi’s dream, as several celebrities went into “trainwreck” mode — getting arrested, flashing their privvies, checking into rehab (then out, then in), and even going on a wild murder spree.

Year in review:

1. Paris Hilton and Nicole Richie both did jail time. So is the corner prison the new place to hang out and meet guys? But what about that awful dress code?

2. Lindsay Lohan preferred to “chill” at rehab, and found herself a new boyfriend too. The fact that he was engaged proved to be a minor inconvenience.

3. Chris Benoit, what happened? We’ll never know. He took his dark secrets to the grave, after killing his family and sending shockwaves through the wrestling world. Anna Nicole Smith also left many unanswered questions, and a little girl who will never know her mom (or her real dad, for that matter).

4. Alec Baldwin and David Hasselhoff, Dina Lohan and Lynne Spears, all proved to be poster kids for what NOT to do when you’re a parent. Hope other celeb moms - Nicole Richie, Scary Spice, and Christina Aguilera — are taking down notes.

5. One word: Britney. Three letters: WTF?